PLEASE HELP!! ANSWER ALL QUESTIONS 1. 4 Fe + 3 O2 → 2 Fe2O3

What are the products? What are the reactants?

How many oxygen atoms are on the right side of the equation (remember- multiply the coefficient times the subscript).

How many oxygen atoms are there on the reactant side? (same hint as the question above).

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.